Sabiana Carisma Whisper fan coil CFF-ECM 50 kW 4.20 - 3.81 SLIM - CB-Touch EASY controlSabiana Carisma Whisper fan coil CFF ECM MV CB TES 50 kW 4. 20 3. 81 SLIM Suitable for rooms from 24 to 36 m2 with an average height of 2. 7 m. Heating output kW 4. 20 Cooling output kW 3. 81. For over 90 years, Sabiana has been designing and producing innovative products for heating and air conditioning suitable for residential or commercial environments, paying particular attention to energy saving and air quality but without neglecting shapes and